Question

Expand in detail please: (3+m)²​​

Answer 1

Answer:

9+6m+m²

Step-by-step explanation:

we know the formula,

(a+b)²= a²+2ab+b²

hence, (3+m)²= 3²+2×3×m+m²

= 9+6m+m²

Answer 2

Answer:

9+6m+m^2

Step-by-step explanation:

(3+m)^2

=(3+m)(3+m)

=9+3m+3m+m^2

=9+6m+m^2